Light Waves

Front

What is light?

Back

Light is a form of energy that travels in waves and can be seen by the human eye.

Front

What are light waves?

Back

Light waves are electromagnetic waves that can travel through a vacuum and do not require a medium.

Front

What is reflection of light?

Back

Reflection is the bouncing back of light rays when they hit a surface.

Front

What is refraction of light?

Back

Refraction is the bending of light rays as they pass from one medium to another, changing speed.

Front

What is absorption of light?

Back

Absorption is when light is taken in by an object and not reflected or transmitted.

Front

Why does an apple appear red?

Back

An apple appears red because it absorbs all colors of light except for red, which is reflected.

Front

What color do objects that reflect all colors appear?

Back

Objects that reflect all colors appear white.

Front

What causes a pencil to appear broken in water?

Back

A pencil appears broken in water because light rays are bent (refracted) by the water.

Front

What is the law of reflection?

Back

The law of reflection states that the angle of incidence is equal to the angle of reflection.

Front

What is a medium in the context of light?

Back

A medium is a substance through which light travels, such as air, water, or glass.